Michael runstetler



L) RUNSTETLER. v

Machine for Bending and Shaping Runners of. Corn Planters. No. 231,621. Patented Aug. 24,1880.

litigl. I a H W N:P l- IERS, PHOTO-LITHOGRAPMER, WASHINGTON D G U IT D STATES PATENT OFFIGE.

MICHAEL RUNSTETLER, OF DAYTON, OHIO, ASSIGNOR TO THE FARMERS FRIEND MANUFACTURING COMPANY, OF SAME PLACE.

MACHINE FOR BENDING AND SHAPING RUNNERS 0F CORN-PLANTERS.

SPECIFICATION forming part of Letters Patent No. 231,621, dated August 24, 1880.

' Application filed April 3, 1880. (No model.)

To all whom it may concern.-

Be it known that-I, ll/IIGHAEL RUNSTETLER,

of Dayton, Montgomery county, State of Ohio, have invented certain new and useful Improvements in Machines for Bending and Shaping Runners for Corn-Planters, of which the following is a specification.

My invention relates to a mechanism for bending corn-planter runners or shoes and other thin metal plates which are to be bent edgewise or in a line parallel with the face of the plates.

My invention consists of adjustable dieplates, preferably arranged horizontally upon a frame, between which the metal is held for bending, and a former or plunger driven by a double crank and pitmen entering between the die-plates and bending or stamping a runner into shape by each stroke of the plungerdie.

Figure 1 is a plan view of my improvement. Fig. 2 is an elevation of the same, partly in section.

A A B B represent the bed-pieces forming the frame of the machine, and should be substantially built. 0 0 represent abut-merits, rigidly attached to the frame of the machine. 0 0 represent adj Listing-screws passing through blocks 0. D represents the bottom dieplate.

E represents an overhangin g arm rigidy at tached to the bottom die-plate, D. It is shown as cast in two pieces and united by a screw, as shown in dotted lines. It may be castin one piece.

6 represents a screw working in a nut in arm E, and swiveling in boss F, which is cast on the top of plate G, suspending die-plate G over die-plate D, G being adjustable by means of the screw 0. D is a flange projecting from the back of plate D, and forming aguide for die-plate G.

Dotted line I represents a ledge proj'ectin g up from the face of die-plate D. The height of this ledge corresponds to the thickness of the metal to be bent. The outline of. this ledgedetermines the shape of one edge of the metal to be bent.

The line from point J to the heel or lug H may be varied to produce different shapes from the one here shown.

P represents a stop-guard on plate D, and it enters socket p when the plunger is advanced. The guard P assists in guiding the entrance of plunger K. This plunger is of the substantiallyas herein set forth.

same thickness as the sheet to be bent, and its forward edge is made convex, to correspond with the top edge of the runner when bent in the desired form. This shape of the forward edge of plunger-die K may be varied to produce different forms.

M M represent a carriage, to which plunger-die Kis rigidly attached. It is preferably bolted to a metallic plate, L, having a socket, p, for the guard-stop P to enter and stop the advance of the plunger.

l 1 indicate bolts for attaching plungerKto the bed-plate L, and l 1 indicate bolts for securing a vertical flange, O, of bed-plate L to carriage B, so as to suspend the bed-plate'L and plunger K on carriage M.

Q Q represent wrists or gudgeons on carriage M, and N N pitmen for driving the carriage.

m m represent slides, which project downward between frame-pieces A and act as ways for the carriage M.

The pitmen are driven by cranks. The pl ungers may be driven by any suitable motor.

J represents a sheet of metal cut in blank form, out of which the runner is bent. It is heated to a white or cherry heat and placed in position between the dies D G, as shown in Fig. l, the forward end resting against ledge I, and the heel against stop or lug H.

Plate G is screwed down so as to rest on ledge I andhold the metal blank firmly in a horizontal position. Plunger K is then ad vanced, and by a single revolution of the crank or forward stroke of the pitmen the bending is performed. I

Equivalents could be substituted for the crank and pitmen.

I claim- 1. A machine for bending corn-planter runners and other similar metal plates, composed, substantially, of the adjustable die-plate G, die-plate D, and plunger'die K, mounted on carriage M, and operated in the manner 2. The die-plate D, having the lug H and circular ledge I, in combination with the adjustable die-plate G, substantially as herein set forth.

In testimony whereof I have hereunto set my hand this 29th day of March, A. D. 1880. Witnesses: MICHAEL RUNSTETLER.

WARREN MUNGER,

E. P. MATTHEWS. 

